US2344219A - Cutting torch - Google Patents

Cutting torch Download PDF

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US2344219A
US2344219A US360639A US36063940A US2344219A US 2344219 A US2344219 A US 2344219A US 360639 A US360639 A US 360639A US 36063940 A US36063940 A US 36063940A US 2344219 A US2344219 A US 2344219A
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tip
torch
oxygen
cutting
passage
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US360639A
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Elmer H Smith
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Smith Welding Equipment Corp
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Smith Welding Equipment Corp
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23DBURNERS
    • F23D14/00Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/38Torches, e.g. for brazing or heating
    • F23D14/42Torches, e.g. for brazing or heating for cutting

Definitions

  • This invention relates to new and useful improvements in cutting torches and more particularly to such a torch comprising novel'means for controlling the flow of cutting gas or oxygen from the tip to the work.
  • Cutting torches usually comprise a handle having a butt at one end to which the corresponding ends of the usual cutting oxygen tube and preheater tubes are secured.
  • the opposite ends of said tubes are usually connected to a torch head which is adapted to receive said tubes and carries a torch tip.
  • the oxygen and acetylene gases are supplied to the butt piece of the handle from suitable supplies of oxygen and acetylene, and such supplies are controlled by suitable valves carried by the handle.
  • a suitable cutting lever is usually mounted on the butt piece for controlling the flow of cutting oxygen through the tip to the work, after the work has been properly preheated.
  • Torches such as above described, are more or less expensive because of the torch tip being supported in a head which is secured to the outer ends of the cutting oxygen and preheater tubes. Such torches are sometimes found impractical for operating on certain types of work as, for example, the insides of pipes or ilues, or other restricted areas where the conventional torch head and tip cannot readily be inserted.
  • novel tip structure herein disclosed has numerous advantages over conventional devices of this type, in that it is less expensive to manufacture; is lighter in weight; and is of such size and shape that it may readily be inserted into restricted places where a conventional torch head cannot be inserted.
  • An object of the invention therefore is to provide a torch assemblyv which is extremely simple and inexpensive in construction, is well balanced, and which may readily be used ⁇ as a cutting or a welding torch by simply interchanging the tips in the torch head, each tip being provided with its own control valve.
  • a further object is to provide an improved torch of the class described, comprising a handle having a torch tip detachably and adjustably secured to one end thereof, and said tip being provided with independent means for controlling the flow of gas therefrom to the work.
  • a further object is to provide a torch assembly comprising a handle portion having a head at one end and a butt piece at its opposite end, and a cutting torch being detachably supported in said head and carrying a valve whereby theflow of cutting oxygen from the central orifice oi the tip may readily be controlled by the simple manipulation of a small lever carried by the valve means on the tip.
  • the tip which has a valve supported directly thereon for controlling the flow of cutting gas therefrom; in the unique manner of detachably securing the tip body to the handle, whereby the tip may readily be rotatively adjusted toany desired angle without interfering with the operation of the cutting oxygen valve or the valves for controlling the delivery of oxygen and fuel gas to the torch head; and, in the provision of a torch which may readily be converted from a cutting to a welding torch and Vice versa by simply substituting a welding tip for the cutting tip or a cutting tip for the welding tip, each such tip carrying its own control valve, which valves are independent of the control valves carried by the torch handle.
  • Figure 1 is a longitudinal sectional view showing a torch assembly embodying the invention
  • Figure 2 is an enlarged detail sectional View showing the connection between the body of the vtorch tip and the head of the torch handle;
  • Figure 3 is an enlarged cross-sectional View on the line 3-3 of Figure 1;
  • Figure 4 is a view showing the tip and its con- 'trol valve removed from the torch handle
  • Figure 5 is an end view of the handle with the tip removed, showing the means for controlling the supplies of oxygen and acetylene to the Atorch tip;
  • a, torch comprising the usual tubular handle 2 having a butt piece 3 secured to one end thereof provided with threaded nipples 4 and 5 for connecting the handle to suitable supplies of oxygen and acetylene, respectively, as is well known.
  • a suitable head 6 is secured to the opposite end of the handle 2, and is shown having a tube 1 connecting it to the butt piece 3.
  • a duct 8 in the butt piece 3 conducts the oxygen from the nipple 4 to the tube 1.
  • the opposite end of the tube 1 is connected to the chamber 9 through a suitable control valve, indicated by ther numeral I I in Figures l and 5.
  • a duct I2 connects the nipple 5 to the inte-Y rior of the handle 2, and the opposite end of the handle is connected to an annular chamber I-3 through a suitable control valveLindicated by the numeral I4 in Figures 1 and 5.
  • the specific construction of the valves II and I4 is not shown in detail in the drawings, as such valves are wellknown to the trade.
  • the head 6 is shown having a reduced cylindrical portion I1 which cooperates with a tubular member I8 to provide the annular chamber I3, hereinbefore referred to.
  • the cylindrical portion i1 terminates at its outer end in an enlargement I6, which fits the bore of the tubular member I3 in such a manner as to provide a leak-proof joint therebetween.
  • rI'he reduced portion l1 has an axial bore 2l, one end of which communicates with the chamber 9 and its opposite end terminating in a threaded socket 22.
  • a suitable clamping nut 23 is received in the socket 22 for securing the torch tip, generally designated by the' numeral 24, in position in the torch head 6, as clearly illustrated in Figures 1V and 2.
  • the tip 24 is provided with a central 'or axially disposed passage 25 through which a suitable cutting gas, such as pure oxygen, 'may flow to the end of the tip to be projected against 4the work.
  • the inner end of the .passage 25 communicates with a passage 26 provided in an equaliser plug, generally designatedy by the numeral 21.
  • the equalizer plug is received in a bore 28 provided in the inner reduced end portion 2'9 of the torch tip.
  • the passage 26 in the equalizer plug 21 establishes communication between the passage 25 of the tip and the chamber 9 of the torch head '6.
  • a plurality of fuel gas passages V3I are provided in the torch tip and are preferably spaced equidistant apart around the central cutting g-as passage 25, as best shown in Figures 3 and 6.
  • the passages 3l extend outwardly to the end of the tip in the usual manner, as clearly illustrated in Figure 6.
  • may be composed of a mixture of acetylene and oxygen, and means is therefore provided for delivering these gases to the passages 3I in the 'proper proportions to provide a combustible fuel gas mixture.
  • Oxygen is delivered to the fuel gas passages 3
  • the restricted passage 34 serves to equalize the pressure of the fuel gas delivered to the passages 3l, whereby the flame jets projected from the end of the tip, when the torch is used for preheating the work, will be substantially uniform in length. It will also be understood, as hereinbefore stated, that the supply of oxygen to the passage 26 of the equalizerrplug 21, is controlled by the valve II, shown in Figures 1 and 5.
  • is received from the passage I6 through the chamber I3 and a plurality of radial ducts 35, which communicate with an annular restricted passage 36 which, in turn, is connected to the fuel gas passages 3I through a plurality of small radial ducts 31.
  • the control valve I4 shown in Figure 5 controls the flow of acetylene through the passage I6 to the fuel gas passages 3l, as hereinbefore stated.
  • a suitable compression member 38 is shown mounted on theV reduced cylindrical portion 29 of the tip, and is adapted to be compressed between a member 39 carried by the tip at the right hand side of the sealing member 38, as shown in Figure 2, and a seat expander 4I, mounted on the cylindrical end portion 29 of the tip.
  • the sealing element 38 will be compressedr between the members 39 and 4I, because of the inner end of the clamping nut 23 engaging a shoulder 42 on the tip body, whereby a leak-proof connection is provided between the sealing element and bore 2l of the torch head.
  • the tip preferably has a tapered face 43 adapted to engage a seat 45 to prevent gas leakage from the tip around the clamping nut 23.
  • the means for controlling the flow of oxygen through the tip is carried directly upon the tip', and is shown comprising a valve body, generally designated by the numeral 44.
  • the valve body is bored to receive the cylindrical body por tion 45 of the tip, and is immovably secured thereto by such means as la pin 46, received in an aperture provided in the valve body and which passes through a portion of the tip body 45, as clearly illustrated in Figure 3.
  • Other means may beprovided, if desired, for securing the valve body 44 to the tip.
  • the enlarged body portion 45 of the tip is shown provided 'with a transverse cylindrical bore 41, which traverses the central passage 25 of the tip and has its lower end tapered to provide, in effect, a tapered seat 46, adapted to be engaged by the tapered ⁇ end portion 49 of a suitable valve stem 5 I.
  • valve stem 5I The lower end of the valve stem 5I is guided in the cylindrical bore 41, and its upper portion in a suitable packing nut or gland 52, received in a threaded socket 53 provided in the upper portion 'of the valve body 44.
  • Al suitable packingA 5'4 is provided between the lower end of the packing nut 52 and the bottom of the socket 53 for preventing leakage around the valve stem 5I.
  • a valve stem lifter 55 is suitably secured to the upper Vend ofthe valve stem 5I, and is adapted to be engaged by the forked endrEB of a suitable operating lever 51.
  • the lever 51 may be mounted on a pivot 5B supported in a lug or bracket 59, shown provided on one end of the valve body 44.
  • a suitable spring 6I is shown interposed between the lug 59 and the lever 51, and normally urges the lever in a direction to move the lower end of the valve stem into closing engagement with the seat 48.
  • the tapered seat 48 is so arranged with respect to the central oxygen passage 25 of the torch tip, that when the lower end of the valve stem is moved into engagement therewith, now through the oxygen passage 25 may be completely cut off.
  • each tip carries its own oxygen control valve, which valve is extremely simple and inexpensive in construction, and provides a very convenient and eiiicient control for the flow of pure oxygen from the central passage 25 of the tip.
  • the torch may quickly be converted from a cutting to a welding torch, by simply substituting a welding tip for the cutting tip, shown in Fig-ure 4.
  • a welding tip for the cutting tip, shown in Fig-ure 4.
  • the position of the valve handle 5l with respect to the control valves l Il and I4 may readily be varied as desired by simply rotating the tip in the head by releasing the clamping nut 23.
  • 'Ihe novel torch herein disclosed may readily and conveniently be operated with a relatively long tip because of the elimination of the usual head provided at the cutting end of a conventional torch for supporting a relatively short tip. Also, by constructing the tip as herein disclosed,
  • the weight is so distributed that a very well balanced torch assembly is provided, even though the tip 24 may be relatively long, which is highly desirable as such a well balanced torch may be operated with much less effort.
  • the bend at the end of the tip obviously may be varied to suit the type of work to be operated upon.
  • the work is preheated by the usual preheating flames or jets projected from the fuel gas passages at the end of the tip around the central oxygen passage 25.
  • oxygen and acetylene are used as a fuel gas
  • the mixture of such gases is controlled by manipulation of the valves Il and I4 in the usual manner.
  • the flow of pure oxygen from the central cuttingtechnisch is controlled entirely by manipulation of the lever 5l, the central passage 25 being in direct communication with the oxygen supply tube 1, as hereinbefore described.
  • a handle having a head at one end provided with a socket, a cutting tip having one end detachably and adjustably supported in said socket, means for supplying cutting oxygen to said socket and tip, said tip comprising a cylindrical body portion and an elongated slender end portion, said body and end portions having a longitudinally extending central cutting oxygen passage therein communicating with the oxygen supply to the socket, and a valve for controlling the flow of oxygen from the tip, said valve comprising a body'portion having a bore therein for receiving the cylindrical portion of the torch tip body and whereby the valve body is secured directly to the body portion of the tip, whereby it is removable with the tip.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gas Burners (AREA)

Description

March 14, 1944.
E. H. SMITH CUTTING TORCH 1940 2 Sheets-Sheet 1 Filed Oct.- lO
' /NVEN-ro. El. M51@ h'.V SM1 TH.
/lTTogNSY'J E. H. sMklTFij CUTTING TORCH Filed Oct. 1ot 1940 March 14, 1944.
r 2 Sheets-Sheet 2 @un IHWHHHHHHHHIIIHHHHHHHNHII u e :Q m /m Ep. W f im Patented Mar. 14, 1944 UNITED STATES PATENT oFFlcE 2,344,219` CUTTING TORCH Elmer H. Smith, Minneapolis, Minn., assignor to Smith Welding Equipment Corporation, Minneapolis, Minn., a corporation of Minnesota Application October 10, 1940, Serial N0. 360,639
l Claim. (Cl. 15S-27.4)
This invention relates to new and useful improvements in cutting torches and more particularly to such a torch comprising novel'means for controlling the flow of cutting gas or oxygen from the tip to the work.
Cutting torches, as now commonly constructed, usually comprise a handle having a butt at one end to which the corresponding ends of the usual cutting oxygen tube and preheater tubes are secured. The opposite ends of said tubes are usually connected to a torch head which is adapted to receive said tubes and carries a torch tip. The oxygen and acetylene gases are supplied to the butt piece of the handle from suitable supplies of oxygen and acetylene, and such supplies are controlled by suitable valves carried by the handle. A suitable cutting lever is usually mounted on the butt piece for controlling the flow of cutting oxygen through the tip to the work, after the work has been properly preheated.
Torches such as above described, are more or less expensive because of the torch tip being supported in a head which is secured to the outer ends of the cutting oxygen and preheater tubes. Such torches are sometimes found impractical for operating on certain types of work as, for example, the insides of pipes or ilues, or other restricted areas where the conventional torch head and tip cannot readily be inserted.
The novel tip structure herein disclosed has numerous advantages over conventional devices of this type, in that it is less expensive to manufacture; is lighter in weight; and is of such size and shape that it may readily be inserted into restricted places where a conventional torch head cannot be inserted.
An object of the invention therefore is to provide a torch assemblyv which is extremely simple and inexpensive in construction, is well balanced, and which may readily be used `as a cutting or a welding torch by simply interchanging the tips in the torch head, each tip being provided with its own control valve. A
A further object is to provide an improved torch of the class described, comprising a handle having a torch tip detachably and adjustably secured to one end thereof, and said tip being provided with independent means for controlling the flow of gas therefrom to the work.
A further object is to provide a torch assembly comprising a handle portion having a head at one end and a butt piece at its opposite end, and a cutting torch being detachably supported in said head and carrying a valve whereby theflow of cutting oxygen from the central orifice oi the tip may readily be controlled by the simple manipulation of a small lever carried by the valve means on the tip.
Other objects of the invention reside in the novel construction of the tip, which has a valve supported directly thereon for controlling the flow of cutting gas therefrom; in the unique manner of detachably securing the tip body to the handle, whereby the tip may readily be rotatively adjusted toany desired angle without interfering with the operation of the cutting oxygen valve or the valves for controlling the delivery of oxygen and fuel gas to the torch head; and, in the provision of a torch which may readily be converted from a cutting to a welding torch and Vice versa by simply substituting a welding tip for the cutting tip or a cutting tip for the welding tip, each such tip carrying its own control valve, which valves are independent of the control valves carried by the torch handle.
Other objects of the invention will appear from the following description and accompanying drawings and will be pointed out in the annexed claim.
In the accompanying drawings there has been disclosed a structure designed to carry out the various objects of the invention, but it is to be understood that the invention is not conned to the exact features shown as various changes may be made within the scope of the claims which follow.
In the drawings:
Figure 1 is a longitudinal sectional view showing a torch assembly embodying the invention;
Figure 2 is an enlarged detail sectional View showing the connection between the body of the vtorch tip and the head of the torch handle;
Figure 3 is an enlarged cross-sectional View on the line 3-3 of Figure 1;
Figure 4 is a view showing the tip and its con- 'trol valve removed from the torch handle;
Figure 5 is an end view of the handle with the tip removed, showing the means for controlling the supplies of oxygen and acetylene to the Atorch tip; and
purposes of disclosure, a, torch comprising the usual tubular handle 2 having a butt piece 3 secured to one end thereof provided with threaded nipples 4 and 5 for connecting the handle to suitable supplies of oxygen and acetylene, respectively, as is well known.
A suitable head 6 is secured to the opposite end of the handle 2, and is shown having a tube 1 connecting it to the butt piece 3. A duct 8 in the butt piece 3 conducts the oxygen from the nipple 4 to the tube 1. The opposite end of the tube 1 is connected to the chamber 9 through a suitable control valve, indicated by ther numeral I I in Figures l and 5.
A duct I2 connects the nipple 5 to the inte-Y rior of the handle 2, and the opposite end of the handle is connected to an annular chamber I-3 through a suitable control valveLindicated by the numeral I4 in Figures 1 and 5. The specific construction of the valves II and I4 is not shown in detail in the drawings, as such valves are wellknown to the trade.
In Figure l, there is indicated in dotted lines, a passage I5 for connecting the interior of the tube 1 with the chamber 9, and a passage I6 for connecting the interior of the handle v2 to the chamber I3. It is to be understood that these passages are diagrammatically shown only, as the valves II and I4 are interposed therein, and control the ilow of gas therethrough to the chambers 9 and I3.
'The head 6 is shown having a reduced cylindrical portion I1 which cooperates with a tubular member I8 to provide the annular chamber I3, hereinbefore referred to. The cylindrical portion i1 terminates at its outer end in an enlargement I6, which fits the bore of the tubular member I3 in such a manner as to provide a leak-proof joint therebetween. y Y
rI'he reduced portion l1 has an axial bore 2l, one end of which communicates with the chamber 9 and its opposite end terminating in a threaded socket 22. A suitable clamping nut 23 is received in the socket 22 for securing the torch tip, generally designated by the' numeral 24, in position in the torch head 6, as clearly illustrated in Figures 1V and 2.
An important feature of the present invention resides in the novel construction of the torch tip 24 and the means for controlling the flow 'of cutting gas therethrough. The tip 24, as best shown in Figure 2, is provided with a central 'or axially disposed passage 25 through which a suitable cutting gas, such as pure oxygen, 'may flow to the end of the tip to be projected against 4the work. The inner end of the .passage 25 communicates with a passage 26 provided in an equaliser plug, generally designatedy by the numeral 21. The equalizer plug is received in a bore 28 provided in the inner reduced end portion 2'9 of the torch tip. The passage 26 in the equalizer plug 21 establishes communication between the passage 25 of the tip and the chamber 9 of the torch head '6.
A plurality of fuel gas passages V3I are provided in the torch tip and are preferably spaced equidistant apart around the central cutting g-as passage 25, as best shown in Figures 3 and 6. The passages 3l extend outwardly to the end of the tip in the usual manner, as clearly illustrated in Figure 6. In the torch `tip herein disclosed, the fuel gas flowing through the passages 3| may be composed of a mixture of acetylene and oxygen, and means is therefore provided for delivering these gases to the passages 3I in the 'proper proportions to provide a combustible fuel gas mixture. Oxygen is delivered to the fuel gas passages 3| through a plurality of small ducts 32 and 33 and an annular restricted passage 34, which establish communication between the passages 3l and the passage 26 in the equalizer plug. The restricted passage 34 serves to equalize the pressure of the fuel gas delivered to the passages 3l, whereby the flame jets projected from the end of the tip, when the torch is used for preheating the work, will be substantially uniform in length. It will also be understood, as hereinbefore stated, that the supply of oxygen to the passage 26 of the equalizerrplug 21, is controlled by the valve II, shown in Figures 1 and 5.
The supply of acetylene to the fuel gas passages 3| is received from the passage I6 through the chamber I3 and a plurality of radial ducts 35, which communicate with an annular restricted passage 36 which, in turn, is connected to the fuel gas passages 3I through a plurality of small radial ducts 31. The control valve I4, shown in Figure 5, controls the flow of acetylene through the passage I6 to the fuel gas passages 3l, as hereinbefore stated.
A suitable compression member 38 is shown mounted on theV reduced cylindrical portion 29 of the tip, and is adapted to be compressed between a member 39 carried by the tip at the right hand side of the sealing member 38, as shown in Figure 2, and a seat expander 4I, mounted on the cylindrical end portion 29 of the tip. When the clamping nut 23 is tightened, the sealing element 38 will be compressedr between the members 39 and 4I, because of the inner end of the clamping nut 23 engaging a shoulder 42 on the tip body, whereby a leak-proof connection is provided between the sealing element and bore 2l of the torch head. The tip preferably has a tapered face 43 adapted to engage a seat 45 to prevent gas leakage from the tip around the clamping nut 23.
Another important feature of the invention resides in the means provided for controlling the iiow of oxygen through the central passage 25 of the cutting tip 24. As best shown in Figures 1 and 4, the means for controlling the flow of oxygen through the tip is carried directly upon the tip', and is shown comprising a valve body, generally designated by the numeral 44. The valve body is bored to receive the cylindrical body por tion 45 of the tip, and is immovably secured thereto by such means as la pin 46, received in an aperture provided in the valve body and which passes through a portion of the tip body 45, as clearly illustrated in Figure 3. Other means may beprovided, if desired, for securing the valve body 44 to the tip.
The enlarged body portion 45 of the tip is shown provided 'with a transverse cylindrical bore 41, which traverses the central passage 25 of the tip and has its lower end tapered to provide, in effect, a tapered seat 46, adapted to be engaged by the tapered `end portion 49 of a suitable valve stem 5 I.
The lower end of the valve stem 5I is guided in the cylindrical bore 41, and its upper portion in a suitable packing nut or gland 52, received in a threaded socket 53 provided in the upper portion 'of the valve body 44. Al suitable packingA 5'4 is provided between the lower end of the packing nut 52 and the bottom of the socket 53 for preventing leakage around the valve stem 5I.
A valve stem lifter 55 is suitably secured to the upper Vend ofthe valve stem 5I, and is adapted to be engaged by the forked endrEB of a suitable operating lever 51. The lever 51 may be mounted on a pivot 5B supported in a lug or bracket 59, shown provided on one end of the valve body 44. A suitable spring 6I is shown interposed between the lug 59 and the lever 51, and normally urges the lever in a direction to move the lower end of the valve stem into closing engagement with the seat 48. The tapered seat 48 is so arranged with respect to the central oxygen passage 25 of the torch tip, that when the lower end of the valve stem is moved into engagement therewith, now through the oxygen passage 25 may be completely cut off.
By mounting the oxygen control valve 44 directly on the cutting tip, as shown in Figures l and 4, the entire torch assembly is considerably lightened in weight, as the cutting oxygen and preheater tubes, usually provided between the butt piece at the forward end of the handle and the torch head, are dispensed with and, in lieu thereof, the single elongated torch tip 24 is used as shown in Figures 1 and 4. Various lengths of tips may be provided to adapt the torch for various kinds of work, said tips being interchangeably supported in the head 6 by the single clamping nut 23. It will also be noted by reference to Figure 4, that each tip carries its own oxygen control valve, which valve is extremely simple and inexpensive in construction, and provides a very convenient and eiiicient control for the flow of pure oxygen from the central passage 25 of the tip.
By constructing a tip as shown in Figures 1 and 4, the torch may quickly be converted from a cutting to a welding torch, by simply substituting a welding tip for the cutting tip, shown in Fig-ure 4. By supporting the tip in the torch head in the manner shown, the position of the valve handle 5l with respect to the control valves l Il and I4 may readily be varied as desired by simply rotating the tip in the head by releasing the clamping nut 23.
'Ihe novel torch herein disclosed, may readily and conveniently be operated with a relatively long tip because of the elimination of the usual head provided at the cutting end of a conventional torch for supporting a relatively short tip. Also, by constructing the tip as herein disclosed,
the weight is so distributed that a very well balanced torch assembly is provided, even though the tip 24 may be relatively long, which is highly desirable as such a well balanced torch may be operated with much less effort. The bend at the end of the tip obviously may be varied to suit the type of work to be operated upon.
In the operation of the torch, the work is preheated by the usual preheating flames or jets projected from the fuel gas passages at the end of the tip around the central oxygen passage 25. When oxygen and acetylene are used as a fuel gas, the mixture of such gases is controlled by manipulation of the valves Il and I4 in the usual manner. The flow of pure oxygen from the central cutting orice is controlled entirely by manipulation of the lever 5l, the central passage 25 being in direct communication with the oxygen supply tube 1, as hereinbefore described. It will thus be noted that the operation of the novel torch herein disclosed is substantially identical to the operation of conventional torches.
I claim as my invention:
In a torch of the class described, a handle having a head at one end provided with a socket, a cutting tip having one end detachably and adjustably supported in said socket, means for supplying cutting oxygen to said socket and tip, said tip comprising a cylindrical body portion and an elongated slender end portion, said body and end portions having a longitudinally extending central cutting oxygen passage therein communicating with the oxygen supply to the socket, and a valve for controlling the flow of oxygen from the tip, said valve comprising a body'portion having a bore therein for receiving the cylindrical portion of the torch tip body and whereby the valve body is secured directly to the body portion of the tip, whereby it is removable with the tip.
ELMER H. SMITH.
US360639A 1940-10-10 1940-10-10 Cutting torch Expired - Lifetime US2344219A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5533549A (en) * 1995-01-26 1996-07-09 Hydronic Components, Inc. Ball valve with integrated removable flow venturi, flow balancing means, and pipe union means
US5667193A (en) * 1994-08-23 1997-09-16 Chrzanowski; Edward R. Safety shut-off device for gas welding apparatus
US6036170A (en) * 1997-10-31 2000-03-14 Sides S.A. Service valve heads which may be connected to soft drink bottles or the like
US20130341366A1 (en) * 2012-06-21 2013-12-26 Jason Craig Campbell Discharge device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5667193A (en) * 1994-08-23 1997-09-16 Chrzanowski; Edward R. Safety shut-off device for gas welding apparatus
US5533549A (en) * 1995-01-26 1996-07-09 Hydronic Components, Inc. Ball valve with integrated removable flow venturi, flow balancing means, and pipe union means
USRE37617E1 (en) * 1995-01-26 2002-04-02 John C. Sherman Ball valve with integrated removable flow venturi, flow balancing means, and pipe union means
US6036170A (en) * 1997-10-31 2000-03-14 Sides S.A. Service valve heads which may be connected to soft drink bottles or the like
US20130341366A1 (en) * 2012-06-21 2013-12-26 Jason Craig Campbell Discharge device

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